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13 Therefore he that is prudent shall keep silence in such a time; for it is an evil time.
In Joel 1:10, 12, this signifies people who worship.
(Odkazy: Amos 5, 5:16; Apocalypse Explained 652)
10 The field is laid waste. The land mourns, for the grain is destroyed, The new wine has dried up, and the oil languishes.